Just a thought, since analyze does sorting, might be a change in sort_area_size. Did you change this param when you upgraded? Try it with a large sort_area and see what happens.
jack silvey --- [EMAIL PROTECTED] wrote: > I suggest running in parallel. Also, is the table > partitioned? > > -----Original Message----- > Sent: Monday, June 10, 2002 4:39 PM > To: Multiple recipients of list ORACLE-L > > > > We just upgraded our data warehouse from version > 8.0.4 to version 8.1.7.2 > of Oracle. We run on Sun Solaris 2.6 vith Veritas > Quick I/O. > > We do an analyze compute nightly with a 10% estimate > of our large, main > fact table. Before the upgrade, the analyze ran > for 45 minutes. Since > the upgrade, it's run three times at a consistent 90 > minutes. > > I am trying to research on Metalink but have not had > much success. Why > would this analyze suddenly run longer? I wouldn't > think that analyze > code is being modified much in new releases. All > the effort would go into > new packages like DBMS_STATS. Is anyone aware of > analyze changing in 8i. > > Our analyze was of a partitioned table and was > single-threaded, not > parallel. I can see that it is still > single-threaded. > > We really didn't change much during the upgrade. I > added another datafile > to the SYSTEM tablespace (on the same file system as > the previous file). > > I also changed parallel_threads_per_cpu from 2 to 0. > However, since we > never did the analyze in parallel, I don't think it > was an issue. > > Any other ideas? I'd like to be able to give our > application owners some > explanation. > > Thanks, > > Cherie > > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.com > -- > Author: > INET: [EMAIL PROTECTED] > > Fat City Network Services -- (858) 538-5051 FAX: > (858) 538-5051 > San Diego, California -- Public Internet > access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an > E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of > 'ListGuru') and in > the message BODY, include a line containing: UNSUB > ORACLE-L > (or the name of mailing list you want to be removed > from). You may > also send the HELP command for other information > (like subscribing). > __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jack Silvey INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
